From d21acb90f4262c8872edcd94c52e65006b977316 Mon Sep 17 00:00:00 2001
From: yohan <783b8c87@scimetis.net>
Date: Tue, 31 Mar 2020 15:23:15 +0200
Subject: [PATCH] Using systemd to mount volumes and start containers at boot.

---
 create.sh          | 17 +++++++++++++++++
 docker-compose.yml |  1 -
 install.sh         | 42 ++++++++++++++++++++++++++++++++++++++++++
 start.sh           |  8 ++++++++
 start_or_update.sh | 23 -----------------------
 volume_list        |  1 +
 6 files changed, 68 insertions(+), 24 deletions(-)
 create mode 100755 create.sh
 create mode 100755 install.sh
 create mode 100755 start.sh
 delete mode 100755 start_or_update.sh
 create mode 100644 volume_list

diff --git a/create.sh b/create.sh
new file mode 100755
index 0000000..d302f3b
--- /dev/null
+++ b/create.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+#Absolute path to this script
+SCRIPT=$(readlink -f $0)
+#Absolute path this script is in
+SCRIPTPATH=$(dirname $SCRIPT)
+
+cd $SCRIPTPATH
+unset VERSION_ELASTICSEARCH
+export VERSION_ELASTICSEARCH=$(git ls-remote https://git.scimetis.net/yohan/docker-elasticsearch.git| head -1 | cut -f 1|cut -c -10)
+
+mkdir -p ~/build
+git clone https://git.scimetis.net/yohan/docker-elasticsearch.git ~/build/docker-elasticsearch
+sudo docker build -t elasticsearch:$VERSION_ELASTICSEARCH ~/build/docker-elasticsearch
+
+sudo -E bash -c 'docker-compose up --no-start'
+
+rm -rf ~/build
diff --git a/docker-compose.yml b/docker-compose.yml
index 14b59d5..ee2d58b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -9,7 +9,6 @@ services:
     environment:
       - discovery.type=single-node
       - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
-    restart: always
     expose:
       - '9200'
       - '9300'
diff --git a/install.sh b/install.sh
new file mode 100755
index 0000000..a1e79a3
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+#Absolute path to this script
+SCRIPT=$(readlink -f $0)
+#Absolute path this script is in
+SCRIPTPATH=$(dirname $SCRIPT)
+STACK=$(basename "$SCRIPTPATH")
+
+for VOLUME in $(awk NF $SCRIPTPATH/volume_list | tr -d "[:blank:]")
+do
+    systemctl enable mnt-cinder-volume@${VOLUME}.service
+done
+
+cat << EOF > /etc/systemd/system/${STACK}.service
+[Unit]
+Description=Starting ${STACK}
+After=network-online.target firewalld.service docker.service docker.socket
+Wants=network-online.target docker.service
+Requires=docker.socket
+EOF
+
+for VOLUME in $(awk NF $SCRIPTPATH/volume_list | tr -d "[:blank:]")
+do
+    cat << EOF >> /etc/systemd/system/${STACK}.service
+After=mnt-cinder-volume@${VOLUME}.service
+After=mnt-volumes-${VOLUME}.mount
+Wants=mnt-cinder-volume@${VOLUME}.service
+Requires=mnt-volumes-${VOLUME}.mount
+
+EOF
+done
+
+cat << EOF >> /etc/systemd/system/${STACK}.service
+[Service]
+Type=oneshot
+User=$SUDO_USER
+ExecStart=$SCRIPTPATH/start.sh
+
+[Install]
+WantedBy=multi-user.target
+EOF
+systemctl daemon-reload
+systemctl enable ${STACK}.service
diff --git a/start.sh b/start.sh
new file mode 100755
index 0000000..1f4bfdf
--- /dev/null
+++ b/start.sh
@@ -0,0 +1,8 @@
+#!/bin/bash
+#Absolute path to this script
+SCRIPT=$(readlink -f $0)
+#Absolute path this script is in
+SCRIPTPATH=$(dirname $SCRIPT)
+
+cd $SCRIPTPATH
+sudo docker-compose start
diff --git a/start_or_update.sh b/start_or_update.sh
deleted file mode 100755
index 00144a5..0000000
--- a/start_or_update.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/bash
-# --force-recreate is used to recreate container when crontab file has changed
-source ~/openrc.sh
-INSTANCE=$(/home/yohan/env_py3/bin/openstack server show -c id --format value $(hostname))
-sudo mkdir -p /mnt/volumes/elasticsearch_data
-if ! mountpoint -q /mnt/volumes/elasticsearch_data
-then
-     VOLUME_ID=$(/home/yohan/env_py3/bin/openstack volume show elasticsearch_data -c id --format value)
-     test -e /dev/disk/by-id/*${VOLUME_ID:0:20} || nova volume-attach $INSTANCE $VOLUME_ID auto
-     sleep 3
-     sudo mount /dev/disk/by-id/*${VOLUME_ID:0:20} /mnt/volumes/elasticsearch_data
-fi
-
-unset VERSION_ELASTICSEARCH
-export VERSION_ELASTICSEARCH=$(git ls-remote https://git.scimetis.net/yohan/docker-elasticsearch.git| head -1 | cut -f 1|cut -c -10)
-
-mkdir -p ~/build
-git clone https://git.scimetis.net/yohan/docker-elasticsearch.git ~/build/docker-elasticsearch
-sudo docker build -t elasticsearch:$VERSION_ELASTICSEARCH ~/build/docker-elasticsearch
-
-sudo -E bash -c 'docker-compose up -d --force-recreate'
-
-rm -rf ~/build
diff --git a/volume_list b/volume_list
new file mode 100644
index 0000000..69f957e
--- /dev/null
+++ b/volume_list
@@ -0,0 +1 @@
+elasticsearch_data